Solar heating system, Electrical connection | A.O. Smith SGE

is

3.10 Solar heating system

Note

For the solar heating system connections, refer to the electrical diagram (17.4 "Electrical diagram, solar heating system") and the table. ( "Electrical connector block")

1.Connect the supply from the solar collector to the inlet (F) of the heat exchanger (55).

2.Connect the return pipe to the solar collector to the outlet (G) of the heat exchanger (55).

3.Connect the lead from the solar heating system controller to sensor S2, see:

-electrical diagram (17.3 "Electrical diagram for the appliance") and

-connections table (3.11.2 "Preparation").

4.Connect the communication cable between the solar heating system controller and the appliance, see:

-electrical diagram (17.4 "Electrical diagram, solar heating system") and

-connections table (3.11.2 "Preparation").

3.11Electrical connection

Warning

The installation diagram shows a non-return valve in the pump station. This non-return valve may be used solely in closed (pressure) systems. In systems with a drain-back tank, it is prohibited to fit a non-return valve in the solar heating system.

Warning

The installation should be carried out by an authorised installation engineer, in compliance with general and local regulations (1.3 "Regulations").

3.11.1Introduction

Topics covered in this paragraph:

•Preparation

•Connecting the mains voltage

Optionally, it is possible to connect an isolating transformer, a continuous pump, a program-controlled pump, an extra ON mode switch and an extra alarm signal to the appliance. For these options, see:

•Isolating transformer

•Connecting continuous pump

•Connecting a program-controlled pump

•Connecting an extra ON mode switch ("Tank ON")

•Connecting an extra error signal ('Alarm OUT' ) Connecting the solar heating system is also described:

•Connecting communication cable to solar heating system

Note

The optional components are not included in the rating for electrical power consumption stated in the table (3.4.2 "General and electrical specifications").

Instruction manual SGE

35

Image 35

A.O. Smith SGE service manual Solar heating system, Electrical connection, Topics covered in this paragraph

Contents

Installation User Your installer More information Read this manual carefullyTrademarks Liability Gis Table of contents Status of the appliance Service programTroubleshooting Maintenance frequency Appendices Performing maintenanceWarranty certificate Table of contents What to do if you smell gas Regulations IntroductionAbout the appliance Introduction Target groups Maintenance Forms of notationSymbol Target group Chapter Target groups Description Overview of this document Gis Topics covered in this chapter Working principle of the applianceIntroduction General working principle of the appliance Working principle of the appliance Other settings that govern the control behaviour areAppliances heating cycle Protection for the appliance Introduction = time = Temperature 45 oC = Minimum tap water temperatureAppliance water temperature protection Gas valve Pressure switch Flame probe 4 Fan Appliance water temperature protectionPressure switch Gas valve Flame probe Safety of the installationUnvented installation Vented installation Pump of the solar heating system Fluid temperatureSafety of the solar heating system Expansion vessel Expansion valve Conditions InstallationPackaging Environmental Water composition Air humidity and ambient temperatureAppliance maximum floor load Working clearances See the table Technical specificationsDimensions of the appliance Appliance is supplied without accessories. Check Dime Description SGE Nsion Gas data General and electrical specifications Gas category 3+ G31 37 mbar Installation diagram Circulation pipe See C in the installation diagram 3.5 Installation diagramWater connections, Unvented Cold water side Hot water side Condensation drainage Water connections, Vented This section covers the following subjects Gas connectionAir supply and flue Introduction Requirements for flue gas discharge materials Types of appliances Concentric connections Practical example of concentric chimney flue SpecificationsFollowing example illustrates how to use the table Total length Bend Parallel connectionsSubject Description Appliance Diameter Maximum Appliance with parallel flue gas discharge material Practical example of parallel chimney flue Electrical connection Preparation Connecting the mains voltageConnecting communication cable to solar heating system Solar heating system Preparation 11.2 11.2 Preparation Connecting the mains voltageConnecting continuous pump Isolating transformer Connecting extra head pump Connecting Q/T sensor Connecting a program-controlled pumpConnecting an extra on mode switch Tank on Connecting an extra error signal Alarm OUT Connecting solar collector Connecting the mains powerConnecting pump station modulating pump Connecting Q/T sensor Connecting tank sensorConnecting communication cable Connecting extra head pump Checking the supply pressure and burner pressure Procedure to check pressures Finish off 3.13.4 Finalising Adjusting the pressureGas data Finalising 13.4 Conversion to a different gas category Orifice assembly Conversion to a different gas category Burner pressure regulator Blank plate Gas control connectorPage Conversion to a different gas category Filling Filling Filling the appliance Filling unvented installationsFilling vented installations Filling with glycol Flushing with water Gis Draining Position the cursor in front of OFF Draining unvented InstallationsDraining Activate the Menu with Position the cursor in front of OFF Confirm OFF with Draining vented installationsDraining solar heating system Draining glycol-filled system Gis Meaning of icons Electronic controller ON/OFF switchControl panel Controls Control panel Navigation buttonsPC connection Operating modes Operating modes Error conditions Service conditionStatus of the appliance Q/T Sensor warning Service conditionError conditions Collector temperature warning Starting the appliance Appliances heating cycle Open 3.5 Installation diagram the manual gas valveStarting and running Starting the appliance Icon is activated Message Ignition appears Starting and runningIcon is activated Message PRE Purge appears Electrically isolating the appliance Shut the appliance down for a brief period OFF modeShutting down Shutting the appliance down for a long period Shutting down Notational convention for menu-related instructions Switching on the on modeSet the water temperature via Main menu Changing the appliances standard week program Setting water temperature during on modeWeek program Starting and stopping the week program Bring the cursor to SU Confirm with Week program setting the switch- on timeWeek program setting the switch- off time Week program setting the water temperature Scroll with to Start Operation Confirm with Week program setting the program- controlled pumpAdding times to a week program Confirm with Display shown in the figure will appear To delete a period, proceed as follows Confirm with Or use to cancelDeleting times from a week program Extra period Setting the program-controlled pump Setting the switch-on timeSetting the switch-off time Setting the water temperature Adjustable settings SettingsSetting menu language Setting day and time Scroll with to Specifications Confirm with Displaying appliance specifications SGEConfirm the minute setting with Table shows the correct settings Appliance Default Range Service programSetting the hysteresis Displaying the error history Switching legionella prevention on and off Switching the pump on or offSetting the service interval Setting legionella prevention Setting the solar limit temperature Solar heating system configurationSetting the drain-back tank Setting the heating fluid type in the solar heating system Reading the energy contribution of the solar heating system Setting the QT sensor yes/noSetting the central heating configuration Distinction is made between TroubleshootingGeneral errors Displayed errors Start the appliance up 9 Starting and running Troubleshooting table for general errorsSymptom Cause Solution Remark Gas smell Display is off Insufficient or absent Symptom Cause Solution Remark Water leakageExplosive ignition Hot water supply Symptom Cause Solution Remark Troubleshooting table for displayed errors Displayed errors S13 blocking error Code + Description Cause Solution RemarkS11 blocking error S12 blocking error F02 lock out error Code + Description Cause Solution Remark S18 blocking errorF01 blocking error Closing Code + Description Cause Solution Remark F03 lock out errorFails to work correctly Engineer Pressure switch not Maintenance 15.2 Preparation for maintenance. If there is Area Code + Description Cause Solution Remark F04 lock out errorF05 lock out error No gas Safety relay Engineer Code + Description Cause Solution Remark F06 lock out errorF07 lock out error F08 lock out error F11 blocking error Code + Description Cause Solution Remark F10 lock out error Selected appliance Code + Description Cause Solution Remark C02 lock out errorC03 blocking error C04 blocking error E04 lock-out error Code + Description Cause Solution Remark E01 blocking errorTemperature E03 lock-out error Displayed warnings Standard setting is 500 burning hours Maintenance frequencyBest maintenance frequency can be determined Maintenance, based on the number of burning hours Maintenance frequency Wait until the fan has stopped. The icon is then dimmed Performing maintenanceIntroduction Preparation for maintenance Performing maintenance Following steps must be carried out on the water side Water-side maintenance IntroductionDescaling and cleaning the tank Checking the anodes Clean the orifices Cleaning condensation water dischargeGas-side maintenance Introduction Clean the burners Collector warranty Conditions for Installation and use Warranty certificate16.1 General warranty 16.2 Tank warranty Warranty certificate Heating system AppendicesThis appendix contains Menu structure of the main menu 17.2 Menu structure Appendices Menu structure 101 Electrical diagram Electrical diagram for the appliance Temperature sensor T1 top Extra on mode switchExtra error signal connection Controller 0/I switch Electrical diagram, solar heating system Solar system electrical diagram legend 106 Example Period Week program cardPeriod Tset Pump 108 109 Index Index 0308